FRC and BC Registers

Go to FRC and BC registers.

Modification Log

Notes:

  1. See Tulika's description for details of bit definitions.
  2. All PCI addresses given below are in BAR0.
  3. Only single addresses are used. No address ranges are implemented because all actions are either on registers or FIFO's.
  4. PCI address lines 19-0 (l_adro[19..0]) are used to access registers on the FRC and BC.

FRC Registers

Addressing Scheme

l_adro bits Used for
19..16 Device (W/R):
0 = FRC general or PCI1,2
1/2 = TRDF
3/4 = SCLF
5/6 = BM
7/8 = PCI3
15 Single or Burst R/W Action
0 = single
1 = burst
14..12 Element within device (varies by device)
0 = control(w) or status(r)
1 = parameters(w)
2 = data (single)
3 = varies
4 = data (burst)
5 = commands

Register Addresses

Name Acc PCI Addr[19..0] Description
General: addr offset from PCI-3 (log3)
FRC_CTRL w 0x0'7000 FRC data input control
PCI-1: addr offset from PCI-1 (log1)
(same def's for PCI-2)
PCI1_T_R r 0x0'0F00 Single Read T/R Data
PCI1_TARGETADD w 0x0'5500 Target Addr for Write to LTB
PCI1_CMND w 0x0'7700 Single Write Command Register
PCI1_STAT r 0x0'A000 PCI-1 Status Register
PCI1_CTRL w 0x0'F000 PCI-1 Control Register
TRDF addr offset from PCI-3 (log3)
TRDF_CTRL w 0x1'0000 TRDF Control Register
TRDF_PARAMETERS w 0x1'1000 TRDF Parameters
TRDF_SW_TEST w 0x1'2000 Single Write Test Data
TRDF_COMMAND w 0x1'5000 Commands from CPU
TRDF_BW_TEST w 0x1'C000 Burst Write Test Data
TRDF_STAT r 0x2'0000 TRDF Status
SCLF addr offset from PCI-3 (log3)
SCLF_CTRL w 0x3'0000 SCLF Control Register
SCLF_PARAMETERS w 0x3'1000 SCLF Parameters
SCLF_SW_TEST w 0x3'2000 Single Write Test Data
SCLF_STOP w 0x3'3000 Clear Stop/Repeat
SCLF_BW_TEST w 0x3'C000 Burst Write Test Data
SCLF_STAT r 0x4'0000 SCLF Status
BM addr offset from PCI-3 (log3)
BM_CTRL w 0x5'0000 BM Control Register
BM_SCL_CMND w 0x5'1000 SCL Init Command Register
BM_MON_CMND w 0x5'2000 Monitoring Command Register
BM_SW_FREE_NO w 0x5'3000 Single Write Free Buffer No.
BM_CRATEID_W w 0x5'5000 Write Crate ID
BM_BW_FREE_NO w 0x5'C000 Burst Write Free Buffer No.
BM_STAT_0 r 0x6'0000 BM Status - word 0
BM_STAT_1 r 0x6'1000 BM Status - word 1
BM_L3XFER r 0x6'3004 Read L3 Transfer No.
BM_CRATEID_R r 0x6'2008 Read Crate ID
PCI-3 addr offset from PCI-3 (log3)
FRC_RES w 0x7'0000 Software System Reset
PCI3_CONF_SW w 0x7'1000 Single Write Configuration Data
PCI3_RECONF w 0x7'2000 Enable Reconfig of Logic Elements
PCI3_CMND w 0x7'3000 Command Register
PCI3_CONF_BW w 0x7'8000 Burst Write Configuration Data
PCI3_CONF_STAT r 0x8'0000 Configuration Status
PCI3_L3_DAT_SR r 0x8'2000 Single Read L3 Data
PCI3_MON_DAT_SR r 0x8'3000 Single Read Monitoring Data
PCI3_L3_DAT_BR r 0x8'8000 Burst Read L3 Data
PCI3_MON_DAT_BR r 0x8'9000 Burst Read Monitoring Data



BC Registers

General Considerations

l_adro bits Used for
31..16 Required to be the same for WC and L3 Data by SBC VME addressing restrictions.
15..0 Required to be non-zero for WC address by SBC. Can be zero for L3 Data address.
19..14 Because of the way the SBC does block-reads, address ranges are necessary for the BC L3 Output FIFO (BC_BR_L3 and BC_SR_L3). Four such address ranges, containing 0x4000 = 16kBytes each, are possible in the current setup.
  • 0x9'0000 - 0x9'3FFF (l_adro[19..14]=B"1001'00"): not used
  • 0x9'4000 - 0x9'7FFF (l_adro[19..14]=B"1001'01"): Burst Read - L3 FIFO
  • 0x9'8000 - 0x9'BFFF (l_adro[19..14]=B"1001'10"): Single Read - Word Count, etc
  • 0x9'C000 - 0x9'FFFF (l_adro[19..14]=B"1001'11"): Single Read - L3 FIFO
19..16 Element Number:
0-6 = write
8-9 = read
11..8 null
7..4 Action
0 = control(w)
1 = data(w)
8 = data(r)
3..0 Target
values = 0,4,8,C

Register Addresses

Name Acc PCI Addr[19..0] Description
BC addr offset from PCI-3 (bc)
BC_CTRL w 0x0'0000 BC Control Register
BC_TARGET_ADDR w 0x1'0004 Target Addr for L3 Data Read
BC_SCL_CLEAR w 0x2'0008 Clear SCL Init Status Register
BC_SOFTWARE_RST w 0x3'000C Software System Reset
BC_SW_RST_FIFO w 0x5'0014 Reset Word Count FIFO
BC_STATUS r 0x8'0080 BC Status
BC_BR_L3 r 0x9'4000 - 0x9'7FFF Burst Read L3 Output FIFO
16,384 bytes
BC_WC_READ r 0x9'8F00 Read Word Count FIFO
BC_SR_L3 r 0x9'C000 - 0x9'FFFF Single Read L3 Output FIFO
16,384 bytes